<template>
    <div class="app">
        <h1>Hello World!!!!</h1>
    </div>
</template>

<script>
export default {
    name: 'App',
    created() {
        console.log([1, 2, 3, 4].includes(2));
    },
};
</script>

<style lang="less">
.app {
    width: 100%;
    min-height: 100vh;
    background-color: #eee;
}
</style>
